String Literal not correctly mapped and iterpreted as Node_Uri

[seralf]

Hi

using a mapping similar to the following:

rr:predicateObjectMap [ 
    rr:predicate rdfs:label ; 
    rr:objectMap [ 
        rr:column "title"; 
        rr:termType rr:Literal ; 
        rr:datatype xsd:string;
    ]
] ;

the produced object in the Jena Graph has the type:
com.hp.hpl.jena.graph.Node_URI